code: def test_global_efficiency(self):
      assert nx.global_efficiency(self.G2) == 5 / 6
  
file_path: networkx/networkx/algorithms/tests/test_efficiency.py
imports: import networkx
label_desc: Use image node_id 5 for calling the TestEfficiency obj's underlying member method code with example usage: obj.test_global_efficiency() without return types